﻿//----------------------------------------------------------------------------------------------------------------------
// <copyright file="MainWindowViewModel.cs" company="Keith B. Rimington">
//
//   Copyright (c) 2011 Keith B. Rimington
//
//   Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
//     documentation files (the "Software"), to deal in the Software without restriction, including without limitation
//     the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
//     to permit persons to whom the Software is furnished to do so, subject to the following conditions:
//
//   The above copyright notice and this permission notice shall be included in all copies or substantial portions of
//     the Software.
//
//   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
//     THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//     AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
//     CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
//     DEALINGS IN THE SOFTWARE.
//
// </copyright>
//----------------------------------------------------------------------------------------------------------------------

namespace Noc.Pomodoro.ViewModels
{
    using System;
    using System.Collections.Specialized;
    using System.ComponentModel;
    using System.Diagnostics.CodeAnalysis;
    using System.Linq;
    using Noc.Pomodoro.Core;

    /// <summary>
    /// A view model representing the core data and configuration for the main window.
    /// </summary>
    [SuppressMessage("Microsoft.StyleCop.CSharp.DocumentationRules", "SA1600:ElementsMustBeDocumented", Justification = "Ignored for view models.")]
    public class MainWindowViewModel : BaseViewModel
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="MainWindowViewModel"/> class.
        /// </summary>
        public MainWindowViewModel()
        {
            this.Items = new ObservableCollectionEx<TaskViewModel>();
            this.Items.ItemPropertyChanged += new PropertyChangedEventHandler(OnTaskPropertyChanged);
        }

        public DateTime Date
        {
            get
            {
                return GetPropertyValue("Date", DateTime.Today);
            }

            set
            {
                SetPropertyValue("Date", value);
                this.IsToday = value.Date == DateTime.Today;
            }
        }

        public bool IsToday
        {
            get { return GetPropertyValue("IsToday", false); }
            set { SetPropertyValue("IsToday", value); }
        }

        public ObservableCollectionEx<TaskViewModel> Items { get; private set; }

        public void OnTaskPropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            if (e.PropertyName == "IsRunning")
            {
                var task = sender as TaskViewModel;
                var enableTasks = !task.IsRunning;
                foreach (var other in this.Items.Where(x => x != task))
                {
                    other.CanRun = enableTasks;
                }
            }
        }
    }
}